100002001100 has 18 divisors (see below), whose sum is σ = 217004342604. Its totient is φ = 40000800400.

The previous prime is 100002001081. The next prime is 100002001109. The reversal of 100002001100 is 1100200001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is not an unprimeable number, because it can be changed into a prime (100002001109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500009906 + ... + 500010105.

Almost surely, 2^100002001100 is an apocalyptic number.

100002001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100002001100 is an abundant number, since it is smaller than the sum of its proper divisors (117002341504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100002001100 is a wasteful number, since it uses less digits than its factorization.

100002001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000020025 (or 1000020018 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 100002001100 its reverse (1100200001), we get a palindrome (101102201101).

The spelling of 100002001100 in words is "one hundred billion, two million, one thousand, one hundred".